/branches/GSoC-config/squirrelmail/plugins/mail_fetch/functions.php
PHP | 403 lines | 256 code | 64 blank | 83 comment | 70 complexity | c67b96144087a513cffb63905c0f0209 MD5 | raw file
Possible License(s): AGPL-1.0, GPL-2.0
- <?php
- /**
- * mail_fetch/functions.php
- *
- * Functions for the mail_fetch plugin.
- *
- * Original code from LexZEUS <lexzeus@mifinca.com>
- * and josh@superfork.com (extracted from php manual)
- * Adapted for MailFetch by Philippe Mingo <mingo@rotedic.com>
- *
- * @copyright © 1999-2007 The SquirrelMail Project Team
- * @license http://opensource.org/licenses/gpl-license.php GNU Public License
- * @version $Id: functions.php 12128 2007-01-13 20:15:44Z kink $
- * @package plugins
- * @subpackage mail_fetch
- */
- /** pop3 class */
- include_once (SM_PATH . 'plugins/mail_fetch/constants.php');
- include_once (SM_PATH . 'plugins/mail_fetch/class.mail_fetch.php');
- /** declare plugin globals */
- global $mail_fetch_allow_unsubscribed;
- /**
- * Controls use of unsubscribed folders in plugin
- * @global boolean $mail_fetch_allow_unsubscribed
- * @since 1.5.1 and 1.4.5
- */
- $mail_fetch_allow_unsubscribed = false;
- /** load site config */
- if (file_exists(SM_PATH . 'config/mail_fetch_config.php')) {
- include_once(SM_PATH . 'config/mail_fetch_config.php');
- } elseif (file_exists(SM_PATH . 'plugins/mail_fetch/config.php')) {
- include_once(SM_PATH . 'plugins/mail_fetch/config.php');
- }
- // hooked functions
- /**
- * Internal function used to fetch pop3 mails on login
- * @since 1.5.1
- * @private
- */
- function mail_fetch_login_function() {
- include_once (SM_PATH . 'functions/imap_general.php');
- global $username, $data_dir, $imapServerAddress, $imapPort;
- $mailfetch_newlog = getPref($data_dir, $username, 'mailfetch_newlog');
- $outMsg = '';
- $mailfetch_server_number = getPref($data_dir, $username, 'mailfetch_server_number');
- if (!isset($mailfetch_server_number)) $mailfetch_server_number=0;
- $mailfetch_cypher = getPref($data_dir, $username, 'mailfetch_cypher');
- if ($mailfetch_server_number<1) $mailfetch_server_number=0;
- for ($i_loop=0;$i_loop<$mailfetch_server_number;$i_loop++) {
- $mailfetch_login_[$i_loop] = getPref($data_dir, $username, "mailfetch_login_$i_loop");
- $mailfetch_fref_[$i_loop] = getPref($data_dir, $username, "mailfetch_fref_$i_loop");
- $mailfetch_pass_[$i_loop] = getPref($data_dir, $username, "mailfetch_pass_$i_loop");
- if( $mailfetch_cypher == 'on' )
- $mailfetch_pass_[$i_loop] = decrypt( $mailfetch_pass_[$i_loop] );
- if( $mailfetch_pass_[$i_loop] <> '' && // Empty passwords no allowed
- ( ( $mailfetch_login_[$i_loop] == 'on' && $mailfetch_newlog == 'on' ) || $mailfetch_fref_[$i_loop] == 'on' ) ) {
- // What the heck
- $mailfetch_server_[$i_loop] = getPref($data_dir, $username, "mailfetch_server_$i_loop");
- $mailfetch_port_[$i_loop] = getPref($data_dir, $username , "mailfetch_port_$i_loop");
- $mailfetch_alias_[$i_loop] = getPref($data_dir, $username, "mailfetch_alias_$i_loop");
- $mailfetch_user_[$i_loop] = getPref($data_dir, $username, "mailfetch_user_$i_loop");
- $mailfetch_lmos_[$i_loop] = getPref($data_dir, $username, "mailfetch_lmos_$i_loop");
- $mailfetch_uidl_[$i_loop] = getPref($data_dir, $username, "mailfetch_uidl_$i_loop");
- $mailfetch_subfolder_[$i_loop] = getPref($data_dir, $username, "mailfetch_subfolder_$i_loop");
- $mailfetch_auth_[$i_loop] = getPref($data_dir, $username, "mailfetch_auth_$i_loop",MAIL_FETCH_AUTH_USER);
- $mailfetch_type_[$i_loop] = getPref($data_dir, $username, "mailfetch_type_$i_loop",MAIL_FETCH_USE_PLAIN);
- $mailfetch_server=$mailfetch_server_[$i_loop];
- $mailfetch_port=$mailfetch_port_[$i_loop];
- $mailfetch_user=$mailfetch_user_[$i_loop];
- $mailfetch_alias=$mailfetch_alias_[$i_loop];
- $mailfetch_pass=$mailfetch_pass_[$i_loop];
- $mailfetch_lmos=$mailfetch_lmos_[$i_loop];
- $mailfetch_login=$mailfetch_login_[$i_loop];
- $mailfetch_uidl=$mailfetch_uidl_[$i_loop];
- $mailfetch_subfolder=$mailfetch_subfolder_[$i_loop];
- $mailfetch_auth=$mailfetch_auth_[$i_loop];
- $mailfetch_type=$mailfetch_type_[$i_loop];
- // end of what the heck
- // $outMsg .= "$mailfetch_alias checked<br />";
- // $outMsg .= "$mailfetch_alias_[$i_loop]<br />";
- // FIXME: duplicate code with different output destination.
- $pop3 = new mail_fetch(array('host' => $mailfetch_server,
- 'port' => $mailfetch_port,
- 'auth' => $mailfetch_auth,
- 'tls' => $mailfetch_type,
- 'timeout' => 60));
- if (!empty($pop3->error)) {
- $outMsg .= _("Warning:") . ' ' . $pop3->error;
- continue;
- }
- $imap_stream = sqimap_login($username, false, $imapServerAddress, $imapPort, 10);
- /* log into pop server*/
- if (! $pop3->login($mailfetch_user, $mailfetch_pass)) {
- $outMsg .= _("Login Failed:") . ' ' . $pop3->error;
- continue;
- }
- $aMsgStat = $pop3->command_stat();
- if (is_bool($aMsgStat)) {
- $outMsg .= _("Can't get mailbox status:") . ' ' . htmlspecialchars($pop3->error);
- continue;
- }
- $Count = $aMsgStat['count'];
- $i = 1;
- if ($Count>0) {
- // If we leave messages on server, try using UIDL
- if ($mailfetch_lmos == 'on') {
- $msglist = $pop3->command_uidl();
- if (is_bool($msglist)) {
- $outMsg .= _("Server does not support UIDL.") . ' '.htmlspecialchars($pop3->error);
- // User asked to leave messages on server, but we can't do that.
- $pop3->command_quit();
- continue;
- // $mailfetch_lmos = 'off';
- } else {
- // calculate number of new messages
- for ($j = 1; $j <= sizeof($msglist); $j++) {
- // do strict comparison ('1111.10' should not be equal to '1111.100')
- if ($msglist[$j] === $mailfetch_uidl) {
- $i = $j+1;
- break;
- }
- }
- }
- }
- // fetch list of messages with LIST
- // we can use else control, but we can also set $mailfetch_lmos
- // to off if server does not support UIDL.
- if ($mailfetch_lmos != 'on') {
- $msglist = $pop3->command_list();
- }
- }
- if ($Count < $i) {
- $pop3->command_quit();
- continue;
- }
- if ($Count == 0) {
- $pop3->command_quit();
- continue;
- }
- for (; $i <= $Count; $i++) {
- if (!ini_get('safe_mode'))
- set_time_limit(20); // 20 seconds per message max
- $Message = $pop3->command_retr($i);
- if (is_bool($Message)) {
- $outMsg .= _("Warning:") . ' ' . htmlspecialchars($pop3->error);
- continue;
- }
- // check if mail folder is not null and subscribed (There is possible issue with /noselect mail folders)
- if ($mailfetch_subfolder=='' ||
- ! mail_fetch_check_folder($imap_stream,$mailfetch_subfolder)) {
- fputs($imap_stream, "A3$i APPEND INBOX {" . strlen($Message) . "}\r\n");
- } else {
- fputs($imap_stream, "A3$i APPEND $mailfetch_subfolder {" . strlen($Message) . "}\r\n");
- }
- $Line = fgets($imap_stream, 1024);
- if (substr($Line, 0, 1) == '+') {
- fputs($imap_stream, $Message);
- fputs($imap_stream, "\r\n");
- sqimap_read_data($imap_stream, "A3$i", false, $response, $message);
- // Check results of append command
- $response=(implode('',$response));
- $message=(implode('',$message));
- if ($response != 'OK') {
- $outMsg .= _("Error Appending Message!")." ".htmlspecialchars($message);
- if ($mailfetch_lmos == 'on') {
- setPref($data_dir,$username,"mailfetch_uidl_$i_loop", $msglist[$i-1]);
- }
- // Destroy msg list in order to prevent UIDL update
- $msglist = false;
- // if append fails, don't download other messages
- break;
- }
- if ($mailfetch_lmos != 'on') {
- $pop3->command_dele($i);
- }
- } else {
- echo "$Line";
- $outMsg .= _("Error Appending Message!");
- }
- }
- $pop3->command_quit();
- sqimap_logout($imap_stream);
- if ($mailfetch_lmos == 'on' && is_array($msglist)) {
- setPref($data_dir,$username,"mailfetch_uidl_$i_loop", array_pop($msglist));
- }
- }
- }
- if( trim( $outMsg ) <> '' ) {
- echo '<br /><font size="1">' . _("Mail Fetch Result:") . "<br />$outMsg</font>";
- }
- if( $mailfetch_newlog == 'on' ) {
- setPref($data_dir, $username, 'mailfetch_newlog', 'off');
- }
- }
- /**
- * Internal function used to detect new logins
- */
- function mail_fetch_setnew_function() {
- global $data_dir, $username;
- setPref( $data_dir, $username, 'mailfetch_newlog', 'on' );
- }
- /**
- * Internal function used to register option block
- * @since 1.5.1
- * @private
- */
- function mailfetch_optpage_register_block_function() {
- global $optpage_blocks;
- $optpage_blocks[] = array(
- 'name' => _("POP3 Fetch Mail"),
- 'url' => '../plugins/mail_fetch/options.php',
- 'desc' => _("This configures settings for downloading email from a POP3 mailbox to your account on this server."),
- 'js' => false
- );
- }
- /**
- * Internal function used to update mail_fetch settings
- * when folders are renamed or deleted.
- * @since 1.5.1
- * @private
- */
- function mail_fetch_folderact_function($args) {
- global $username, $data_dir;
- if (empty($args) || !is_array($args)) {
- return;
- }
- /* Should be 3 ars, 1: old folder, 2: action, 3: new folder */
- if (count($args) != 3) {
- return;
- }
- list($old_folder, $action, $new_folder) = $args;
- $mailfetch_server_number = getPref($data_dir, $username, 'mailfetch_server_number');
- for ($i = 0; $i < $mailfetch_server_number; $i++) {
- $mailfetch_subfolder = getPref($data_dir, $username, 'mailfetch_subfolder_' . $i);
- if ($mailfetch_subfolder != $old_folder) {
- continue;
- }
- if ($action == 'delete') {
- setPref($data_dir, $username, 'mailfetch_subfolder_' . $i, 'INBOX');
- } elseif ($action == 'rename') {
- setPref($data_dir, $username, 'mailfetch_subfolder_' . $i, $new_folder);
- }
- }
- }
- // end of hooked functions
- /**
- * hex2bin - document me
- */
- function hex2bin( $data ) {
- /* Original code by josh@superfork.com */
- $len = strlen($data);
- $newdata = '';
- for( $i=0; $i < $len; $i += 2 ) {
- $newdata .= pack( "C", hexdec( substr( $data, $i, 2) ) );
- }
- return $newdata;
- }
- function mf_keyED( $txt ) {
- global $MF_TIT;
- if( !isset( $MF_TIT ) ) {
- $MF_TIT = "MailFetch Secure for SquirrelMail 1.x";
- }
- $encrypt_key = md5( $MF_TIT );
- $ctr = 0;
- $tmp = "";
- for( $i = 0; $i < strlen( $txt ); $i++ ) {
- if( $ctr == strlen( $encrypt_key ) ) $ctr=0;
- $tmp.= substr( $txt, $i, 1 ) ^ substr( $encrypt_key, $ctr, 1 );
- $ctr++;
- }
- return $tmp;
- }
- function encrypt( $txt ) {
- srand( (double) microtime() * 1000000 );
- $encrypt_key = md5( rand( 0, 32000 ) );
- $ctr = 0;
- $tmp = "";
- for( $i = 0; $i < strlen( $txt ); $i++ ) {
- if ($ctr==strlen($encrypt_key)) $ctr=0;
- $tmp.= substr($encrypt_key,$ctr,1) .
- (substr($txt,$i,1) ^ substr($encrypt_key,$ctr,1));
- $ctr++;
- }
- return bin2hex( mf_keyED( $tmp ) );
- }
- function decrypt( $txt ) {
- $txt = mf_keyED( hex2bin( $txt ) );
- $tmp = '';
- for ( $i=0; $i < strlen( $txt ); $i++ ) {
- $md5 = substr( $txt, $i, 1 );
- $i++;
- $tmp.= ( substr( $txt, $i, 1 ) ^ $md5 );
- }
- return $tmp;
- }
- /**
- * check mail folder
- * @param stream $imap_stream imap connection resource
- * @param string $imap_folder imap folder name
- * @return boolean true, when folder can be used to store messages.
- * @since 1.5.1 and 1.4.5
- */
- function mail_fetch_check_folder($imap_stream,$imap_folder) {
- global $mail_fetch_allow_unsubscribed;
- // check if folder is subscribed or only exists.
- if (sqimap_mailbox_is_subscribed($imap_stream,$imap_folder)) {
- $ret = true;
- } elseif ($mail_fetch_allow_unsubscribed && sqimap_mailbox_exists($imap_stream,$imap_folder)) {
- $ret = true;
- } else {
- $ret = false;
- }
- // make sure that folder can store messages
- if ($ret && mail_fetch_check_noselect($imap_stream,$imap_folder)) {
- $ret = false;
- }
- return $ret;
- }
- /**
- * Checks if folder is noselect (can't store messages)
- *
- * Function does not check if folder subscribed.
- * @param stream $imap_stream imap connection resource
- * @param string $imap_folder imap folder name
- * @return boolean true, when folder has noselect flag. false in any other case.
- * @since 1.5.1 and 1.4.5
- */
- function mail_fetch_check_noselect($imap_stream,$imap_folder) {
- $boxes=sqimap_mailbox_list($imap_stream);
- foreach($boxes as $box) {
- if ($box['unformatted']==$imap_folder) {
- return (bool) check_is_noselect($box['raw']);
- }
- }
- return false;
- }